81115281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 130830336

約数和(自身を除く): 49715055

約数列:

[1, 3, 9, 13, 39, 53, 103, 117, 127, 159, 309, 381, 477, 689, 927, 1143, 1339, 1651, 2067, 4017, 4953, 5459, 6201, 6731, 12051, 13081, 14859, 16377, 20193, 39243, 49131, 60579, 70967, 87503, 117729, 170053, 212901, 262509, 510159, 638703, 693293, 787527, 1530477, 2079879, 6239637, 9012809, 27038427, 81115281]

約数ペア:

[(1, 81115281), (3, 27038427), (9, 9012809), (13, 6239637), (39, 2079879), (53, 1530477), (103, 787527), (117, 693293), (127, 638703), (159, 510159), (309, 262509), (381, 212901), (477, 170053), (689, 117729), (927, 87503), (1143, 70967), (1339, 60579), (1651, 49131), (2067, 39243), (4017, 20193), (4953, 16377), (5459, 14859), (6201, 13081), (6731, 12051)]